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Finding the Fourth Proportional to 186,389.87, 279,594.03 and 53,289.74

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Solution

The fourth proportional to 186,389.87, 279,594.03 and 53,289.74 is: 79,937.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,389.87 : 279,594.03 = 53,289.74 : x
  2. Step 2: Convert to fraction form
    186,389.87/279,594.03 = 53,289.74/x
  3. Step 3: Cross multiply
    186,389.87x = 279,594.03 × 53,289.74
  4. Step 4: Simplify right side
    186,389.87x = 14,899,491,766.28
  5. Step 5: Solve for x
    x = 14,899,491,766.28/186,389.87
  6. Step 6: Final answer
    x = 79,937.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.